increase safety penalty if the king that cannot retreat

SPRT
* tc=10"+0.1"
* alpha=beta=0.1
* elo0=0 elo1=5

Score of test vs master: 1209 - 1096 - 1986  [0.513] 4291
ELO difference: 9
SPRT: H1 was accepted

signature = 7146748